<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title></title>
    </head>
    <body>
        <?php
        include_once 'operation.php';
        $op=new operation();
      echo $output=$op->convert("stop.jpg","stop_1.png", 200, 200, 100).'</br>';
                ?>
          
    </body>
</html>
